Ulambayar Byambajav, known professionally as Byamba, previously Daishochi Kenta, (Mongolian: ?????????? ????????; Japanese: ??? ??; born 24 November 1984) is a sumo wrestler from Ulaanbaatar, Mongolia.
He is a two-time winner of the Sumo World Championships, in 2006 and 2007.
He is 6'1" tall, weighing 350 lb.
He has also entered in over 100 matches winning all gold medals, in Japan, Mongolia, Thailand, US, Italy, Germany, and more.
He also featured as a model for the Subaru car company.
In September 2009 he won in the 115+ kg and overall category at the US Open Championship held in California.He was formerly a professional sumo wrestler (rikishi) who competed under the shikona of Daishochi.
He was a member of Shibatayama stable from July 2001 until September 2005, reaching a highest rank of makushita 15.
However, tiring of the lifestyle, he quit at age 20 and as well as an amateur sumo career he has also featured in film and television roles in Hollywood, and many commercials.